Finding the Fourth Proportional to 3,944,750,731.85, 5,443,758,944.84 and 2,136,276,639.47
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Solution
The fourth proportional to 3,944,750,731.85, 5,443,758,944.84 and 2,136,276,639.47 is: 2,948,063,351.85
Step by Step Solution
- Step 1: Write the proportion equation
3,944,750,731.85 : 5,443,758,944.84 = 2,136,276,639.47 : x - Step 2: Convert to fraction form
3,944,750,731.85/5,443,758,944.84 = 2,136,276,639.47/x - Step 3: Cross multiply
3,944,750,731.85x = 5,443,758,944.84 × 2,136,276,639.47 - Step 4: Simplify right side
3,944,750,731.85x = 11,629,375,064,767,549,440 - Step 5: Solve for x
x = 11,629,375,064,767,549,440/3,944,750,731.85 - Step 6: Final answer
x = 2,948,063,351.85
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.